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Table 2 Co-localization of H3K4me and H3K27me3 in the same genome regions

From: Genome-wide analysis of mono-, di- and trimethylation of histone H3 lysine 4 in Arabidopsis thaliana

  Total regions Overlap with H3K27me3 % Random overlapping* Enriched for H3K27me3? Depleted of H3K27me3?
H3K4me1 15,475 178 1.15 4.78% No (P = 1) Yes (P < 10-10)
H3K4me2 12,781 881 6.89 6.09% Yes (P = 1.0 × 10-4) No (P = 1)
H3K4me3 15,894 572 3.60 7.12% No (P = 1) Yes (P < 10-10)
  1. *For each H3K27me3-containing genomic region, a genomic region of the same length was randomly selected within its 10-kb upstream or downstream flanking regions. The set of random control regions thus resemble the H3K27me3 in both length and chromosomal distributions. The overlapping frequencies of the random control regions with H3K4me-containing regions were then determined.